Shell Scripting - Automate Like a Cyber Samurai

Welcome, young cyber-samurai! 🥷💻

Tired of typing the same boring commands every day? Want to automate tasks like a true hacker ninja? It's time to unleash the power of shell scripting – the ancient art of automation!

Shell scripting turns you into a cyber-samurai, slicing through repetitive tasks with just a single command.

What is a Shell Script?

A shell script is simply a text file filled with commands that you’d normally type in a terminal. Instead of repeating commands, you write them once and let the computer do the work for you. 🖥️

💡 Think of it as writing a to-do list for your terminal. Instead of saying:

cd /var/www
ls -lah
cp config.php config_backup.php

You put those commands in a file and run it like a digital magic spell! ✨

Creating & Running Your First Script

🔹 Step 1: Create a new script file

nano mynoobscript.sh

🔹 Step 2: Write your script (inside mynoobscript.sh)

#!/bin/bash

# The ancient words of greeting
echo "Konichiwa, Cyber Samurai! 🥷"

# Display today's date
echo "Today's date is: $(date)"

# Show system uptime
echo "Your machine has been running for: $(uptime -p)"

🔹 Step 3: Make the script executable

chmod +x mynoobscript.sh

🔹 Step 4: Run your script like a true ninja!

./mynoobscript.sh

🎉 Boom! Your script runs like a boss! 🤯

Understanding the Magic

Symbol	Meaning
#!/bin/bash	🏯 Tells the system to use the Bash shell
echo	💬 Prints text to the terminal
$(command)	⚡ Runs a command inside another command
chmod +x	🔓 Makes a script executable

Pro Tip: Without chmod +x, your script is just a boring text file. Don't forget it! 😎